Clutch Position Not Learned
After a clutch replacement or sensor replacement the TCM has not run a successful clutch-position learn cycle. Without learned end-stops the TCM cannot accurately command engagement points, leading to slipping or harsh take-up. A scan-tool guided learn procedure must be performed.
Affected components
- Clutch position sensor a
- Tcm
Common causes
- High likelihood: Learn cycle not performed after service
Possible symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Diagnostic notes
- The malfunction indicator lamp may illuminate
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.